A thermal anomaly persists in the summit crater and was observed in satellite images today. Seismic activity is low and shows little change from background levels over the past 24 hours. AVO has received no new reports of steaming or other types of activity at Shishaldin Volcano.

AVO has observed no further activity at Cleveland since the small eruption on June 25. Clouds have obscured views of the volcano in satellite and web camera images today and AVO has received no reports of activity from pilots or boats in the region.

No significant changes have been observed at Redoubt Volcano over the past 24 hours. Seismicity at the volcano is slightly above background and web camera views show continued steaming from the lava dome. A major dome collapse event is still a possibility and would likely result in significant ash production, with ash plumes possibly rising to aircraft flight levels, hot block and ash flows, and flooding in the Drift River valley.

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.

VOLCANO ALERT LEVELS

NORMALVolcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.

ADVISORYVolcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.

WATCHVolcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway but poses limited hazards.

WARNINGHazardous eruption is imminent, underway, or suspected.

AVIATION COLOR CODES

GREENVolcano is in typical background, noneruptive state or, after a change from a higher level, volcanic activity has ceased and volcano has returned to noneruptive background state.

YELLOWVolcano is exhibiting signs of elevated unrest above known background level or, after a change from a higher level, volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.

ORANGEVolcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible].

REDEruption is imminent with significant emission of volcanic ash into the atmosphere likely OR eruption is underway or suspected with significant emission of volcanic ash into the atmosphere [ash-plume height specified, if possible].